Abstract
Because plywood is being used in ever-increasing quantities in the construction of aircraft and boats of many types, it is essential to know the effect upon this material of vibrating loads. Hence whether failure occurs in the wood or in the adhesive under repeated stress, what allowable stresses may be applied, and what the fatigue limit may be, are questions which the engineer must be prepared to answer. The present paper gives the results of a research program covering the behavior of plywood and laminated wood bonded with synthetic phenolic-resin adhesives, undergoing alternating stress, in the unweathered and weathered conditions, and at high and low temperatures. This is a continuation of a previous report, which presented some findings with respect to fatigue behavior of plywood and laminated wood under alternating stresses.
